Are there any plans to add keyboard integration for navigating the various interfaces we encounter, so that it's not restricted to the mouse?

They want to design their UI so that it's much more keyboard-friendly. Right now you can only use the mouse, which is rubbish, because using the keyboard can at times be faster. They add that making the UI more keyboard-friendly can simplify it, which is generally good because then it's more likely to work well across other input devices too, such as a gamepad. The MFDs should be the first bit of UI to feature the more uniform control method that caters for most people.